It is necessary that the patient (examine) ______ carefully before the operation.

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问题 It is necessary that the patient (examine) ______ carefully before the operation.

选项

答案(should)be examined

解析 虚拟语气常用在以It is…开头的复合句的主语从句中,表示命令、要求、建议等,谓语动词用(should)do的虚拟形式。常用于此结构中的形容词有:advisable, appropriate,best,better,crucial,desirable,essential,imperative,important,necessary,obligatory,preferable,urgent,vital等。
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